Thematic Bible: The measurement of the temple

Then a reed was given me to serve as a measuring rod; and a voice said, "Rise, and measure God's sanctuary--and the altar--and count the worshipers who are in it. But as for the court which is outside the sanctuary, pass it over. Do not measure it; for it has been given to the Gentiles, and for forty-two months they will trample the holy city under foot.